ppalli hoebokharyeomyeon mureul manhi masyeoya haeyo.

회복하려면 comes from:

• 회복하다 = to recover
• -려고 하다 = to intend to do
• -면 = if / when

In practice, -려면 means something like if you want to..., if you’re going to..., or in order to... depending on context.

So 회복하려면 can be understood as:

• if you want to recover
• if you’re going to recover
• to recover

In this sentence, it has the natural sense of if you want to recover quickly or to recover quickly.

Korean often prefers adverbs directly before the verb or verb phrase they modify.

So:

• 빨리 회복하다 = to recover quickly

This sounds natural and straightforward.

You could also say 회복을 빨리 하려면, but that feels a bit more like treating 회복 as a noun, as in to do recovery quickly, which is less natural in everyday speech here.

So 빨리 회복하려면 is the more common and natural wording.

빨리 is an adverb meaning quickly or soon.

It modifies 회복하려면, not 마셔야 해요. In other words, it tells you the recovery should happen quickly, not that the water should be drunk quickly.

So the sentence means:

• To recover quickly, you need to drink a lot of water

not

• You need to quickly drink a lot of water

If you wanted to emphasize drinking quickly, the sentence structure would be different.

물 is the direct object of 마시다 because it is the thing being drunk.

So:

• 물 = water
• 물을 = water + object marker

The object particle is:

• 을 after a consonant
• 를 after a vowel

Since 물 ends in ㄹ, it takes 을, so:

• 물 + 을 = 물을

Here 많이 means a lot.

It is the adverb form related to 많다 = to be many / to be much.

So:

• 물을 많이 마시다 = to drink a lot of water

Even though English uses much with uncountable nouns like water, Korean often uses 많이 as an adverb meaning a lot with verbs.

So the natural English idea is:

• drink a lot of water

마셔야 해요 means have to drink or must drink.

It is formed from:

• 마시다 = to drink
• -아/어야 하다 = have to / must

So:

• 마시다 → 마셔야 하다
• polite form: 마셔야 해요

Why 마셔야 and not 마시어야?

Because Korean often contracts forms naturally:

• 마시어야 → 마셔야

So 마셔야 해요 is the normal spoken and written form.

Not necessarily. -아/어야 해요 expresses necessity: have to, need to, or must.

The strength depends on context.

In this sentence, it sounds more like advice or a recommendation based on necessity:

• If you want to recover quickly, you need to drink a lot of water

It does not sound like a harsh command. It sounds practical and caring.

If someone wanted to sound more forceful, other forms or context would make that clearer.

The subject is omitted because Korean often leaves out subjects when they are obvious from context.

In this sentence, the implied subject is usually:

• you

So the full idea is:

• If you want to recover quickly, you have to drink a lot of water

Korean does this very often. If the listener already knows who the sentence is about, there is no need to say 당신은 or another subject explicitly.

In fact, explicitly saying you in Korean is often unnecessary and can sound unnatural.

해요 makes the sentence polite in the standard conversational style.

Here, 마셔야 해요 is the polite present form of 마셔야 하다.

This style is very common in everyday Korean because it is:

• polite
• natural
• not too formal
• not too casual

Compare:

• 마셔야 해요 = polite everyday speech
• 마셔야 합니다 = more formal
• 마셔야 해 = casual, used with close friends or someone younger

So this sentence is polite and suitable for normal conversation.

It is a 하다 verb, which means it is built from a noun plus 하다.

• 회복 = recovery
• 회복하다 = to recover / to restore / to recuperate

Many Korean words of this type come from Sino-Korean vocabulary and work this way.

That means you may also see related forms like:

• 회복 = recovery
• 회복 중 = in recovery / recovering
• 회복이 빠르다 = recovery is fast

In this sentence, 회복하다 functions as the verb to recover.

Yes, depending on context, that can be a very natural English translation.

Literally, 마셔야 해요 is closer to:

• have to drink
• need to drink
• must drink

But in natural English, especially for health advice, should drink may sound smoother.

So possible translations include:

• If you want to recover quickly, you need to drink a lot of water
• If you want to recover quickly, you should drink a lot of water
• To recover quickly, you have to drink a lot of water

The Korean grammar itself expresses necessity, but the best English wording depends on tone and context.

A natural pronunciation would sound approximately like:

• 빨리 회복하려면 물을 많이 마셔야 해요
• ppalli hoebok-haryeomyeon mureul mani masyeoya haeyo

A few useful pronunciation notes:

• 빨리 has a tense ㅃ, so it is stronger than a plain b/p sound.
• 회복 is often pronounced closer to hwebok or hoebok, depending on the speaker.
• 마시어야 contracts to 마셔야, so you hear masyeoya, not masieoya.

You do not need to pronounce each syllable in an overly separate way; in natural speech, it flows smoothly as one sentence.